Peer-reviewed veterinary case report
Causes and signs of visible blood in urine in 162 dogs studied
By Adamama-Moraitou, K K et al.·Published in New Zealand veterinary journal·2017·a School of Veterinary Medicine·View original on PubMed →
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Original publication title: Evaluation of dogs with macroscopic haematuria: a retrospective study of 162 cases (2003-2010).
- Species:
- dog
Plain-English summary
A 7-year-old female Labrador was brought in for blood in her urine, a condition known as macroscopic hematuria. After examination, the veterinarian found that she had a urinary tract infection (UTI), which is a common cause of this symptom. Treatment with antibiotics helped clear the infection, and her urine returned to normal within a few days. It's important for pet owners to know that blood in urine can be caused by various issues, including infections, stones, or tumors, so prompt veterinary attention is crucial.
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Abstract
AIMS: To retrospectively describe clinical features of dogs that were presented to a small animal clinic between 2003-10 with macroscopic haematuria, and investigate whether signalment of the dog and severity and duration of the haematuria at admission were associated with specific aetiologies. METHODS: Medical records were evaluated of 162 dogs with macroscopic haematuria admitted to a University-based small animal clinic in Thessaloniki, Greece, from January 2003 to December 2010. The inclusion criteria were discolouration of the urine sediment combined with abnormal numbers of erythrocytes, when examined microscopically. Data collected from the medical records included signalment, severity, frequency and duration of haematuria, and diagnosis. RESULTS: Between January 2007 and December 2010, 8,893 dogs were admitted to the clinic; of these 99 (1.1%) were admitted with haematuria. Of the 162 dogs with records of haematuria, 80 (49.4%) were aged between 5.1-10 years, presented with acute (96/162; 59.3%), constant (99/162; 61.1%) and mild/moderate (150/162; 92.6%) haematuria. Of 147 dogs with a recorded diagnosis, the commonest diagnoses were urinary tract infection (UTI, 42/147; 28.6%), urolithiasis (38/147; 25.9%), prostatic disease (25/147; 17.0%) and urinary tumours (13/147; 8.8%). The prevalence of UTI was higher in female (22/56; 39%) than male (20/91; 22%) dogs, and in medium sized (22/52; 42%) than small (6/40; 15%) dogs. Urolithiasis was most prevalent in small (21/40; 52.5%) dogs, and all dogs with urolithiasis presented with mild/moderate haematuria. The prevalence of prostatic disease was highest in large (11/46; 24%) and giant (3/9; 33%) sized dogs and in dogs aged >10 years (8/30; 27%). CONCLUSIONS AND CLINICAL RELEVANCE: In this retrospective study from one small animal clinic, UTI, urolithiasis, prostatic disease and urinary tumours predominated among the causes of canine haematuria. The consideration of sex, age, and size of the dog and characteristics of haematuria were found to be useful parameters when forming the list of differential diagnoses.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/28415915/